此外，在顶上和底部的刀上有不同的磨损痕。
In addition to this, there is a different wear pattern between the top and the bottom knife.
使用扫描电子显微镜（SEM）和能谱分析（EDS）等观察分析磨损钢球表面的磨痕形貌、化学元素和纳米粒子形态。
The surface morphology of wear scar, nanoparticles and its element distribution have been tested and analyzed by scanning electron microscope(SEM) and energy dispersive spectrometry(EDS).
探讨了利用图像处理技术对磨损磨痕进行测量。
The wear scar measurement method has been investigated based on image processing.
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